ArticlePlant physiology2012
MACROCALYX and JOINTLESS interact in the transcriptional regulation of tomato fruit abscission zone development.
Article in Plant physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.
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81 citing papers in PubMed, 166 citations in OpenAlex.
- Incomplete functional divergence drives MADS-box gene synergy during floral development in tomato.PLoS biology · 2026Article
- A multi-perspective analysis of the regulatory mechanisms governing pedicel abscission in tomato.Plant cell reports · 2026Review
- At the breaking point: developmental and molecular insights intoFrontiers in plant science · 2026Article
- Dynamic attributes of the pedicel: Key drivers, structure and function in angiosperms.Journal of biosciences · 2026Review
- EndophyticJournal of fungi (Basel, Switzerland) · 2025Article
- Transcriptome and Targeted Hormone Metabolome Reveal the Mechanism of Flower Abscission in Soybeans Under Shade.International journal of molecular sciences · 2025Article
- Tomato flowering depends on overlapping functions of AP1/FUL-like genes in reproductive meristem specification.The New phytologist · 2025Article
- Abscission zones: cellular interfaces for the programmed separation of organs.Annals of botany · 2025Review
- Solanaceae pan-genomes reveal extensive fractionation and functional innovation of duplicated genes.Plant communications · 2025Article
- Transcriptome analyses for revealing leaf abscission of Cyclocarya paliurus stem segments in vitro.BMC genomics · 2025Article
- Unraveling the mechanisms of fruit abscission inFrontiers in plant science · 2025Article
- Abscission in plants: from mechanism to applications.Advanced biotechnology · 2024Review
- JOINTLESS Maintains Inflorescence Meristem Identity in Tomato.Plant & cell physiology · 2024Article
- An Overview on MADS Box Members in Plants: A Meta-Review.International journal of molecular sciences · 2024Review
- A SEPALLATA MADS-Box Transcription Factor, SlMBP21, Functions as a Negative Regulator of Flower Number and Fruit Yields in Tomato.Plants (Basel, Switzerland) · 2024Article
- Identification ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2024Article
- And yet another transcription factor-the complex world of fruit ripening.Plant physiology · 2024Article
- Integrated analysis of the transcriptome and metabolome reveals the molecular mechanism regulating cotton boll abscission under low light intensity.BMC plant biology · 2024Article
- Two SEPALLATA MADS-Box Genes,International journal of molecular sciences · 2024Article
- Signaling pathways mediating the induction of preharvest fruit drop in litchi.Frontiers in plant science · 2024Article
21 more citing papers are in PubMed but not listed here.
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abscission in plants is a crucial process used to shed organs such as leaves, flowers, and fruits when they are senescent, damaged, or mature. Abscission occurs at predetermined positions called abscission zones (AZs). Although the regulation of fruit abscission is essential for agriculture, the developmental mechanisms remain unclear. Here, we describe a novel transcription factor regulating the development of tomato (Solanum lycopersicum) pedicel AZs. We found that the development of tomato pedicel AZs requires the gene MACROCALYX (MC), which was previously identified as a sepal size regulator and encodes a MADS-box transcription factor. MC has significant sequence similarity to Arabidopsis (Arabidopsis thaliana) FRUITFULL, which is involved in the regulation of fruit dehiscent zone development. The MC protein interacted physically with another MADS-box protein, JOINTLESS, which is known as a regulator of fruit abscission; the resulting heterodimer acquired a specific DNA-binding activity. Transcriptome analyses of pedicels at the preabscission stage revealed that the expression of the genes involved in phytohormone-related functions, cell wall modifications, fatty acid metabolism, and transcription factors is regulated by MC and JOINTLESS. The regulated genes include homologs of Arabidopsis WUSCHEL, REGULATOR OF AXILLARY MERISTEMS, CUP-SHAPED COTYLEDON, and LATERAL SUPPRESSOR. These Arabidopsis genes encode well-characterized transcription factors regulating meristem maintenance, axillary meristem development, and boundary formation in plant tissues. The tomato homologs were specifically expressed in AZs but not in other pedicel tissues, suggesting that these transcription factors may play key roles in pedicel AZ development.
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